Secchi Disk Economy Model for Limnological Diameter 200mm with 20m Nylon Line

Need to determine how clear the water is? Measure the turbidity or degree of visibility of the water you’re testing with our secchi disk

- To measure water transparency or turbidity in bodies of water.

Specifications:

- 200 mm (7-7/8”) diameter acrylic

- Two white, two black quadrants

- Comes with 20m nylon line